[MacPorts] #61580: libdv @1.0.0 build failure with Xcode 12 (was: libdv does not install)

[MacPorts]

#61580: libdv @1.0.0 build failure with Xcode 12
-----------------------------+--------------------
  Reporter:  MaurizioLoreti  |      Owner:  (none)
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:
      Port:  libdv           |
-----------------------------+--------------------
Changes (by jmroot):

 * port:   => libdv


Comment:

 {{{
 :info:build dvconnect.c:873:7: error: implicit declaration of function
 'sched_setscheduler' is invalid in C99 [-Werror,-Wimplicit-function-
 declaration]
 :info:build                 if (sched_setscheduler (0, SCHED_RR, &scp) <
 0) {
 :info:build                     ^
 }}}

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Ticket URL: <https://trac.macports.org/ticket/61580#comment:1>
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